Apparatus and method for transmitting a sub-channel signal in a communication system using an orthogonal frequency division multiple access scheme

Abstract From the Canadian patent

A method of allocating sub-channel signal interleaving patterns to base stations (BSs) forming a wireless communication system capable of dividing a frequency band into a plurality of sub-carriers and including a plurality of sub-channels. The method comprises the steps of creating a basic orthogonal sequence having a length identical to a number of the sub-carriers forming the sub-channel; creating a plurality of sequences having lengths identical to the length of the basic orthogonal sequence by one of cyclic-shifting the basic orthogonal sequence and through performing a modulo operation based on a number of the sub-carriers forming the sub-channel after adding a , predetermined …